Select the word segment that substitutes (replaces) the bracketed word segment correctly and completes the sentence meaningfully. Select the option 'no correction required' if the sentence is correct as given.
A republic is a form of government (where country is considered a) "public matter", not the private concern or property of the rulers.

Correct option is C

The correct substitution of the highlighted words is (c) in which the country is considered a.
Explanation:
· The noun “republic” refers to a system of government.
· “ Where” is generally used for places, not for abstract entities like “form of government”.
· So, the correct relative pronoun here is “in which”.
· Also, the verb should be "is considered" (present simple passive) to show a generally accepted fact.
· The article “ a” is correct before “public matter”.
Correct sentence:
A republic is a form of government in which the country is considered a "public matter", not the private concern or property of the rulers.
Grammatical Rule Used:
Use “in which” when referring to an abstract noun (like system, form, manner) that’s not a physical location.
Use passive voice ("is considered") when the subject receives the action.
Example:
· Democracy is a system in which people choose their leaders.
Why other options are incorrect:
· (a) No Correction Required – “where” is incorrect for non-physical noun
· (b) in which country is considering a – wrong verb form; “country is considering” is active, but passive is needed
· (d) where the country is to be considered an – “where” is incorrect, “an” also doesn’t fit with “public matter” (starts with consonant sound)